Bill Maynard found that the
title of Cay van Ash's unfinished third novel was The Seal of Fu
Manchu. This was
found in an interview Van Ash did with Andy
Lane for Million magazine in 1991. Sadly, The Society of Authors retained no
information on the novel in their records (other than the fact that he was
licensed to do a third novel and that it was never completed).
The setting was to be Paris.

Cay Van Ash was a close friend of
Sax and Elizabeth Rohmer. He and Elizabeth wrote Sax Rohmer's biography, Master of
Villainy. He was also a frequent contributor to The Rohmer
Review. Born in Sussex, England, he lived for a time in London before moving to
Japan where he lived for nearly thirty years. He taught at Waseda University in Tokyo.

Once it was decided that the Rohmers would remain in America, it fell to Cay Van Ash to
ship their better furniture in storage in England. In doing so he noted "I personally
inherited the unique, mosaic-shaded lamp which had stood on Sax's writing desk during our
first meeting, and lugged it proudly around the world ever afterwards." (Master
of Villainy 277)